<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div>
        <div id="title">
            <button data-url="/center">个人中心</button>
            <button data-url="/news">新闻</button>
            <button data-url="/music">音乐</button>
        </div>
        <div id="view"></div>
    </div>
    <script>
        const oBtn = document.querySelectorAll("#title button")
        const oView = document.getElementById("view")

        //1. 首先创建一个路由表,规定了路由的对应信息
        const routes = [{
                path: "/center",
                content: "我的主页我做主"
            },
            {
                path: "/news",
                content: "明明我们看的新闻是一样的,为什么我要花钱看"
            },
            {
                path: "/music",
                content: "周董发新歌了在几个月前"
            }
        ]

        for (var i = 0; i < oBtn.length; i++) {
            oBtn[i].onclick = function () {
                //获取当前路由跳转的按钮上保存的path信息 然后改变地址栏地址的hash值
                location.hash = this.dataset.url
            }
        }

        window.onhashchange = function (e) {
            //在event事件对象上拿到当前监听的新的hash地址
            const newURL = e.newURL.split('#')[1]
            //拿到当前的hash和路由表中的path进行一一对比,更新对应的视图
            routes.forEach((route) => {
                if(route.path === newURL){
                    oView.innerHTML = route.content
                }
            })
        }
    </script>
</body>

</html>